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A195540 as a simple table

n a(n)
1 13
2 37
3 433
4 1261
5 14701
6 42841
7 499393
8 1455337
9 16964653
10 49438621
11 576298801
12 1679457781
13 19577194573
14 57052125937
15 665048316673
16 1938092824081
17 22592065572301
18 65838103892821
19 767465181141553
20 2236557439531837
21 26071224093240493

[13,37,433,1261,14701,42841,499393,1455337,
 16964653,49438621,576298801,1679457781,
 19577194573,57052125937,665048316673,
 1938092824081,22592065572301,65838103892821,
 767465181141553,2236557439531837,
 26071224093240493]

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Last modified May 19 22:13 EDT 2013. Contains 225436 sequences.